Physics, 20.10.2020 22:01 garciavergaraana

IF YOU GET GOOD GRADES ON SCIENCE TESTS PLEASE HELP ME Out of the wild west during the time of colonial expansion , the native peoples would put their ears to the ground to listen for herds of bison or groups of horses in the area. Why would listening to the ground be more effective than cupping a hand around your ear while standing up on high ground?
A. the ground is denser than the air so the sound of a herd can be heard sooner through ground than through the air.
B. the ground is less dense than the air so the sound of a herd can be heard sooner through the ground than through air.
C. the ground is denser than the air so the sound of a herd can be heard through air than through ground.
D. the ground is less dense than the air so the sound of a herd can be heard sooner through the air than through the ground.
(please be 100% sure with your answer)

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 08:00

What is the measure of a change in an objects velocity?

Answers: 2

Answer

Physics, 22.06.2019 18:30

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal

Answers: 3

Answer

Physics, 22.06.2019 23:40

Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)

Answers: 1

Answer

Physics, 23.06.2019 02:00

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?

Answers: 2

Answer

You know the right answer?

IF YOU GET GOOD GRADES ON SCIENCE TESTS PLEASE HELP ME Out of the wild west during the time of colo...

Questions